Makehuman pose broken between 2.69 and 2.7x
If you had auto run python scripts enabled in your preferences for 2.69 and you haven't enabled it or copied your user prefs in the new version, then it might be because some python drivers are being blocked.

If this is the case, there should be a message in the info header (at the top of the window by default):



You can either press Reload trusted each time you open the .blend, or make sure auto run python scripts is enabled in User preferences > File > Auto Execution: